212100211210212 has 120 divisors (see below), whose sum is σ = 597154797581496. Its totient is φ = 65258186015232.

The previous prime is 212100211210177. The next prime is 212100211210253. The reversal of 212100211210212 is 212012112001212.

212100211210212 is a `hidden beast` number, since 21 + 2 + 10 + 0 + 211 + 210 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4030433668836 + 208069777541376 = 2007594^2 + 14424624^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 79717408 + ... + 82335080.

Almost surely, 2^{212100211210212} is an apocalyptic number.

It is an amenable number.

212100211210212 is an abundant number, since it is smaller than the sum of its proper divisors (385054586371284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212100211210212 is a wasteful number, since it uses less digits than its factorization.

212100211210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636939 (or 2636928 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212100211210212 its reverse (212012112001212), we get a palindrome (424112323211424).

The spelling of 212100211210212 in words is "two hundred twelve trillion, one hundred billion, two hundred eleven million, two hundred ten thousand, two hundred twelve".